Thanks guys for your reply, but the problem is tiledbackgrounds doesn't support animations. So I could use a static custom picture but no animations in there. Like you see in the example I'd like to use a "flow-effect".

The solution with blend modes is also great but only supports one fill of the healthbar, because "destionation out" uses the background as destination and no other sprite or background.

An option so resize a sprite like a tiledbackground would solve the problem, but the sprite object just allows to scaling picture at the moment :S